Nest Thermostat Gen 4

[KostyaG]

Hi. I have a central HVAC system that provides AC and Heating. It heats the house using forced air by means of furnace. I would like to use this system only for  its AC function. The heating should be used only for emergency/ aux heat.

I have a separate  in floor heating which i love and use primary.

Here is the issue The connection is as follows from the HVAC

Y1, Cool

G Fan

RC Power

W2, Heat

C common

From the Heated floors, (W1 heat and Rh Power)

When I call for heat the heated floors work great, problem is when i demand more heat and the AUX heat turns on, nothing happens.  The furnace does not turn on. PLEASE HELP

From the 

[maedacortez]

Hi KostyaG,

Thanks for reaching out. I understand that your Google Nest Thermostat 4th generation isn't responding when you demand more heat. I'm happy to help you with this!

Could you please send me a picture of your wire labels so I can check if everything is connected correctly and better understand the situation?

I will be awaiting your response.

Regards,
Manuel